olivia wilde is officially off the market and 28-year-old is engaged to "saturday night live" funny man jason is a dsei. >> tucker: and one day after federal officials declared the virus had reached epidemic proportions in the country and why is it important to go to the hospital and how can the flu shot help you. joining us now is the emergency department, doctor, thank you for joining us. >> thank you. >> tucker: what's the distinction between an emergency and a nonemergency? >> well, really most people with normal immune systems can stay home with flu or flu-like illness. the ones that need to worry who have asthma, emphysema, diabetes, diseases that decreased immune system or higher risk. what do they look for, a fever that doesn't respond to tylenol or motrin or shortness of breath or pre longed illness and tried the treatment at home, two, three, four days, or symptoms getting worse or dehydration, those persons should come to the emergency room. new york declared this an emergency, what does that mean? >> one of the important things to look at with this emergency, the good thing, the g